A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6685-01-027-6186
NSN 5835-00-537-7780
NSN 4140-01-626-3827
NSN 6650-00-210-4399
NSN 7035-01-398-3494
NSN 6220-00-695-1107
NSN 5965-00-267-4173
NSN 6220-00-429-6652
NSN 5960-01-189-1644
NSN 5975-01-606-0005
NSN 5990-01-268-4268
NSN 6650-00-629-8027